Merge "Revert "Track per-process freezable state in BroadcastQueue."" into udc-dev am: f8e8d3f1

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23305864



Change-Id: I12e35fd8c224e3cd374788e412f0ba84e49207ec
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>